Search: id:A084732
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%I A084732
%S A084732 3,7,31,127,12207031,8191,131071,524287,11111111111111111111111,
%T A084732 7369130657357778596659,2147483647,
%U A084732 19013087418896543607659206142267856546797091624826498592389251997
%N A084732 Let p be the n-th prime; Cp(x) be the p-th cyclotomic polynomial (x^p-1)/
               (x-1); a(n) is the first prime Cp(x) after Cp(1).
%C A084732 A084732(k) = A085399(prime(k))
%e A084732 a(5)=12207031 because 11 is the 5th prime; C11(x) is composite for x=2,
               3,4 and C11(5)=12207031 is prime.
%Y A084732 Cf. A066180, A085399.
%Y A084732 Sequence in context: A088552 A000668 A136007 this_sequence A123488 A121620 
               A042271
%Y A084732 Adjacent sequences: A084729 A084730 A084731 this_sequence A084733 A084734 
               A084735
%K A084732 nonn
%O A084732 1,1
%A A084732 Amarnath Murthy and Meenakshi Srikanth (amarnath_murthy(AT)yahoo.com), 
               Jun 14 2003
%E A084732 Edited by Don Reble (djr(AT)nk.ca), Jun 28 2003

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